40605286 has 4 divisors (see below), whose sum is σ = 60907932. Its totient is φ = 20302642.

The previous prime is 40605269. The next prime is 40605311. The reversal of 40605286 is 68250604.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×40605286² = 3297578502283592, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10151320 + ... + 10151323.

It is an arithmetic number, because the mean of its divisors is an integer number (15226983).

Almost surely, 2^40605286 is an apocalyptic number.

40605286 is a deficient number, since it is larger than the sum of its proper divisors (20302646).

40605286 is a wasteful number, since it uses less digits than its factorization.

40605286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20302645.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 40605286 is about 6372.2277109344. The cubic root of 40605286 is about 343.7116013968.

The spelling of 40605286 in words is "forty million, six hundred five thousand, two hundred eighty-six".